While we may have been hoping for a single lesson, a single test of our learning, but that is not consistent with our ascension process, which is an upward spiral, not a straight line.
我们总是期盼著自己的学习会是一个简单的课题和测试，然而，我们的提升过程却不是如此单纯，整个提升之道是个向上的螺旋路径，而不是直线的延伸。
Being elementary textbooks, it should be put into suitable position and fulfils its own function. It also should carry a characteristic of sustainable learning and a spiral structure.
作为初级教材摆正教材的地位，分工合理，体现可持续性学习的特色，整体呈现出螺旋式的上升结构。
Being elementary textbooks, it should be put into suitable position and fulfils its own function. It also should carry a characteristic of sustainable learning and a spiral structure.
作为初级教材摆正教材的地位，分工合理，体现可持续性学习的特色，整体呈现出螺旋式的上升结构。
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